You are part of a Six Sigma Yellow Belt project team at a hospitality company. The project's aim is to enhance the guest check-in process, which has been receiving mixed reviews from customers. You have identified issues such as long wait times, paperwork errors, and a lack of personalization. What is the most effective approach to improve the guest check-in process based on the identified issues? Question 9 options: Require all employees to complete a customer service training program to enhance their interactions with guests during check-in Streamline the check-in process by identifying and eliminating non-value-added steps and paperwork errors Outsource the entire guest check-in process to a third-party company to reduce in-house workload Install more self-check-in kiosks to reduce wait times and automate the process Introduce a loyalty program that provides personalized perks to repeat guests, addressing the lack of personalization